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Virtualization

ID	Contact Title	Contact Name	Country	Rating


1	Marketing Manager	Jaime Yorres	Austria	1 2 3 4 5
2	Accounting Manager	Pascale Cartrain	Brazil	1 2 3 4 5
3	Accounting Manager	Hanna Moos	Austria	1 2 3 4 5
4	Sales Associate	Jaime Yorres	Italy	1 2 3 4 5
5	Accountant	Georg Pipps	Italy	1 2 3 4 5
6	Sales Manager	Elizabeth Lincoln	France	1 2 3 4 5
7	Sales Agent	Patricio Simpson	Italy	1 2 3 4 5
8	Marketing Assistant	Jaime Yorres	Argentina	1 2 3 4 5
9	Sales Consultant	Paul Henriot	USA	1 2 3 4 5
10	Accountant	Georg Pipps	Austria	1 2 3 4 5
11	Sales Manager	Paul Henriot	USA	1 2 3 4 5
12	Marketing Manager	Antonio Moreno	Brazil	1 2 3 4 5
13	Sales Consultant	Georg Pipps	England	1 2 3 4 5
14	Marketing Assistant	Hanna Moos	Spain	1 2 3 4 5
15	Marketing Manager	Hanna Moos	Argentina	1 2 3 4 5
16	Sales Representative	Hanna Moos	Austria	1 2 3 4 5
17	Sales Associate	Jaime Yorres	Bulgaria	1 2 3 4 5
18	Sales Agent	Georg Pipps	Brazil	1 2 3 4 5
19	Marketing Manager	Elizabeth Lincoln	France	1 2 3 4 5
20	Marketing Manager	Hanna Moos	France	1 2 3 4 5
21	Sales Manager	Matti Karttunen	England	1 2 3 4 5
22	Sales Manager	Matti Karttunen	England	1 2 3 4 5
23	Accounting Manager	Patricio Simpson	Argentina	1 2 3 4 5
24	Owner	Pascale Cartrain	Bulgaria	1 2 3 4 5
25	Accounting Manager	Paul Henriot	Spain	1 2 3 4 5
26	Sales Representative	Elizabeth Lincoln	Spain	1 2 3 4 5
27	Sales Associate	Pascale Cartrain	Italy	1 2 3 4 5
28	Sales Agent	Georg Pipps	Austria	1 2 3 4 5
29	Marketing Manager	Howard Snyder	USA	1 2 3 4 5
30	Accounting Manager	Elizabeth Lincoln	Italy	1 2 3 4 5
31	Sales Agent	Elizabeth Lincoln	Austria	1 2 3 4 5
32	Sales Manager	Antonio Moreno	Spain	1 2 3 4 5
33	Accountant	Paul Henriot	USA	1 2 3 4 5
34	Marketing Manager	Matti Karttunen	Italy	1 2 3 4 5
35	Marketing Assistant	Georg Pipps	Germany	1 2 3 4 5
36	Accounting Manager	Patricio Simpson	Germany	1 2 3 4 5
37	Sales Representative	Paul Henriot	Brazil	1 2 3 4 5
38	Marketing Manager	Patricio Simpson	Spain	1 2 3 4 5
39	Accountant	Matti Karttunen	Germany	1 2 3 4 5
40	Sales Representative	Jaime Yorres	USA	1 2 3 4 5
41	Sales Representative	Elizabeth Lincoln	USA	1 2 3 4 5
42	Sales Associate	Pascale Cartrain	Germany	1 2 3 4 5
43	Marketing Manager	Georg Pipps	Argentina	1 2 3 4 5
44	Owner	Hanna Moos	Italy	1 2 3 4 5
45	Sales Agent	Pascale Cartrain	Austria	1 2 3 4 5
46	Accountant	Hanna Moos	Brazil	1 2 3 4 5
47	Sales Manager	Georg Pipps	Bulgaria	1 2 3 4 5
48	Marketing Manager	Pascale Cartrain	Germany	1 2 3 4 5
49	Marketing Manager	Matti Karttunen	Austria	1 2 3 4 5
50	Marketing Assistant	Paul Henriot	Argentina	1 2 3 4 5
51	Sales Consultant	Matti Karttunen	Spain	1 2 3 4 5
52	Sales Manager	Matti Karttunen	Spain	1 2 3 4 5
53	Sales Representative	Howard Snyder	France	1 2 3 4 5
54	Sales Agent	Howard Snyder	Argentina	1 2 3 4 5
55	Sales Representative	Hanna Moos	Italy	1 2 3 4 5
56	Sales Agent	Hanna Moos	Austria	1 2 3 4 5
57	Sales Agent	Howard Snyder	Spain	1 2 3 4 5
58	Accountant	Matti Karttunen	Austria	1 2 3 4 5
59	Sales Agent	Hanna Moos	Brazil	1 2 3 4 5
60	Accountant	Jaime Yorres	Brazil	1 2 3 4 5
61	Sales Manager	Hanna Moos	Germany	1 2 3 4 5
62	Sales Consultant	Georg Pipps	Brazil	1 2 3 4 5
63	Marketing Manager	Patricio Simpson	Brazil	1 2 3 4 5
64	Sales Associate	Pascale Cartrain	Argentina	1 2 3 4 5
65	Marketing Manager	Paul Henriot	USA	1 2 3 4 5
66	Accountant	Elizabeth Lincoln	England	1 2 3 4 5
67	Owner	Georg Pipps	Italy	1 2 3 4 5
68	Marketing Manager	Hanna Moos	France	1 2 3 4 5
69	Sales Manager	Georg Pipps	Austria	1 2 3 4 5
70	Accountant	Patricio Simpson	Argentina	1 2 3 4 5
71	Sales Representative	Patricio Simpson	Bulgaria	1 2 3 4 5
72	Marketing Assistant	Paul Henriot	USA	1 2 3 4 5
73	Sales Representative	Elizabeth Lincoln	Bulgaria	1 2 3 4 5
74	Sales Agent	Paul Henriot	Bulgaria	1 2 3 4 5
75	Sales Associate	Elizabeth Lincoln	USA	1 2 3 4 5
76	Accounting Manager	Antonio Moreno	Austria	1 2 3 4 5
77	Sales Representative	Matti Karttunen	Spain	1 2 3 4 5
78	Sales Associate	Pascale Cartrain	Italy	1 2 3 4 5
79	Sales Manager	Hanna Moos	England	1 2 3 4 5
80	Sales Agent	Paul Henriot	Brazil	1 2 3 4 5
81	Marketing Assistant	Elizabeth Lincoln	England	1 2 3 4 5
82	Sales Agent	Matti Karttunen	Italy	1 2 3 4 5
83	Accounting Manager	Hanna Moos	England	1 2 3 4 5
84	Accounting Manager	Georg Pipps	Spain	1 2 3 4 5
85	Sales Associate	Georg Pipps	Austria	1 2 3 4 5
86	Marketing Assistant	Georg Pipps	Spain	1 2 3 4 5
87	Accounting Manager	Matti Karttunen	Austria	1 2 3 4 5
88	Accounting Manager	Jaime Yorres	Brazil	1 2 3 4 5
89	Sales Agent	Antonio Moreno	England	1 2 3 4 5
90	Accountant	Georg Pipps	Argentina	1 2 3 4 5
91	Accounting Manager	Antonio Moreno	Argentina	1 2 3 4 5
92	Accountant	Patricio Simpson	Austria	1 2 3 4 5
93	Sales Representative	Patricio Simpson	France	1 2 3 4 5
94	Owner	Patricio Simpson	Spain	1 2 3 4 5
95	Sales Representative	Pascale Cartrain	Italy	1 2 3 4 5
96	Owner	Howard Snyder	Bulgaria	1 2 3 4 5
97	Sales Associate	Hanna Moos	Bulgaria	1 2 3 4 5
98	Marketing Assistant	Jaime Yorres	Germany	1 2 3 4 5
99	Sales Representative	Elizabeth Lincoln	USA	1 2 3 4 5
100	Marketing Assistant	Georg Pipps	USA	1 2 3 4 5


...141 142 143 144 145 146 147 148 149 150 ... Item 142001 to 143000 of 300000 Page: of 300 GoPage size:

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Columns
- ID
- Contact Title
- Contact Name
- Country
- Rating

About this demo
C#
VB
Download demo code files
Isolate this demo as a stand-alone application

RadGrid's virtualization feature allows you to handle hundreds of thousands of rows without negatively impacting the user experience. The control achieves this thanks to its ItemsPerView property allowing you to control the number of items loaded at a time. Users can now scroll, as well as show, hide, resize and reorder columns without any waiting time.

This demo shows how quickly Telerik's ASP.NET DataGrid can handle user interactions with 300,000 items. You can configure the component to allow scrolling through the entire data set or only through the current page by using EnableCurrentPageScrollOnly property,.

<%@ Page Language="vb" AutoEventWireup="false" CodeFile="DefaultVB.aspx.vb" Inherits="Telerik.GridExamplesVBNET.Performance.Virtualization.DefaultVB" %>

<%@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI" %>
<%@ Register TagPrefix="qsf" Namespace="Telerik.QuickStart" %>
<!DOCTYPE html>
<html xmlns='http://www.w3.org/1999/xhtml'>
<head runat="server">
    <title>Telerik ASP.NET Example</title>
    <link href="styles.css" rel="stylesheet" />
</head>
<body>
    <form id="form1" runat="server">
    <telerik:RadScriptManager runat="server" ID="RadScriptManager1" />
    <telerik:RadSkinManager ID="RadSkinManager1" runat="server" ShowChooser="true" />
    <telerik:RadAjaxLoadingPanel runat="server" ID="RadAjaxLoadingPanel1"></telerik:RadAjaxLoadingPanel>
    <telerik:RadAjaxPanel runat="server" ID="RadAjaxPanel" LoadingPanelID="RadAjaxLoadingPanel1" CssClass="demo-container">
        <telerik:RadGrid RenderMode="Lightweight" ID="RadGrid1" runat="server"  AutoGenerateColumns="false"
            AllowSorting="true" GroupingEnabled="false"
            EnableHeaderContextMenu="true" AllowPaging="true" PageSize="1000" OnNeedDataSource="RadGrid1_NeedDataSource">
            <MasterTableView TableLayout="Fixed">
                <Columns>
                    <telerik:GridBoundColumn UniqueName="ID" HeaderText="ID" HeaderStyle-Width="50px" DataField="ID"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="ContactTitle" HeaderText="Contact Title" HeaderStyle-Width="150px" DataField="ContactTitle"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="ContactName" HeaderText="Contact Name" HeaderStyle-Width="150" DataField="ContactName"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="Country" HeaderText="Country" HeaderStyle-Width="100px" DataField="Country"></telerik:GridBoundColumn>
                    <telerik:GridRatingColumn UniqueName="Rating" HeaderText="Rating" HeaderStyle-Width="100px" DataField="Rating"></telerik:GridRatingColumn>
                </Columns>
            </MasterTableView>
            <ClientSettings ReorderColumnsOnClient="true" AllowColumnsReorder="true" ColumnsReorderMethod="Reorder">
                <Virtualization EnableVirtualization="true" InitiallyCachedItemsCount="2000"
                    LoadingPanelID="RadAjaxLoadingPanel1" ItemsPerView="100"/>
                <Scrolling AllowScroll="true" UseStaticHeaders="true" ScrollHeight="500px" />
                <Resizing AllowColumnResize="true" />
            </ClientSettings>
            <PagerStyle Mode="NextPrevNumericAndAdvanced"></PagerStyle>
        </telerik:RadGrid>
    </telerik:RadAjaxPanel>
    </form>
</body>
</html>

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